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OpenIFS is a version of the full IFS (Integrated Forecast System) code. OpenIFS is based on Cycle 38R1, the current operational model as of introduced in December 2012 .(it has since been superceded for operations)
IFS CY38R1 comprises approximately 1.3 million lines and 5200 files. OpenIFS comprises roughly 0.5 million lines in 2600 files. OpenIFS uses the FCM build software from the UK Met Office to configure and compile the model and is designed to be easy to install on external computer systems.
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